This is a list of Japanese spies including leaders and commanders of the Japanese Secret Intelligence Services in the period 1930 to 1945. Yakichiro Suma es – Japan's Ambassador in Spain, chief of the Japanese spy network code named "TO".

Takeo Yoshikawa (吉川 猛夫, Yoshikawa Takeo, March 7, 1912 – February 20, 1993) was a Japanese spy in Hawaii before the attack on Pearl Harbor on December 7, 1941.

The Japanese Foreign Ministry's own cables appear to contradict findings of a federal, commission which reported Feb. 24 that there was "no military rea- son" for confining some .117,000 Japanese-Americans in isolated camps from 1942 to 1945.

Known as the Doll Woman, Dickinson used her New York City Doll shop as base of operations to spy on the US Navy and send stenographic messages to her Japanese handlers in South America. She was caught by the FBI in 1944 and was sentenced to ten years in prison.

One fellow who was keeping his eyes wide open that day was Japanese spy Takeo Yoshikawa. He closely observed the Pacific Fleet at anchor in Pearl Harbor on the south side of Oahu late in the afternoon from vantage points at Aiea Heights and the Pearl City Landing.

Jun 12, 2006 · Yoshikawa was to become his country’s only military spy in the islands and Yamamoto’s most valuable source of current information on Oahu. Yoshikawa began by familiarizing himself with the principal Hawaiian islands and their military installations, which were concentrated on Oahu.

Jan 26, 2012 · Japan’s intelligence effort during the war included both spying and signals intelligence (SIGINT). Based at various diplomatic missions, Japanese intelligence officers, diplomats, and military attaches started with what they could gather openly.

This is a list of Japanese spies including leaders and commanders of the Japanese Secret Intelligence Services (Kempeitai) in the period 1930 to 1945. The Emperor of Japan (Tenno) was constitutionally the supreme commander of the Japanese Secret Services as a branch of the Imperial Armed forces.

Nov 8, 2011 · American officials could have easily found the Japanese spy who set the stage for the Pearl Harbor attack—if only they had looked. Nagumo was commanding a task force about to strike Pearl Harbor, crush the Pacific Fleet there, and open Japan’s war with the United States.